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GCU BIO202 EXA1
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Exam of 7 pages for the course GCU BIO202 at GCU BIO202 (GCU BIO202 EXA1)
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GCU BIO202 EXAMAccording to Dalton's Law - ANSWER The total pressure of a mix of gases is equal
to the sum of the partial pressures of each of those gases.
Which best describes the function of lung surfactant? - ANSWER It reduces the
surface tension, which reduces the energy needed to expand the lungs.
The ultimate goal of the process of respiration is. - ANSWER To synthesize ATP.
What is the PRIMARY method by which CO2 is transported in the blood? - ANSWER
As bicarbonate molecule
Urine is composed of ________________. - ANSWER Plasma filtrate -
Reabsorbed molecules + Secreted molecules
Which of the following would be likely to cause an increase in GFR (glomerular
filtration rate)? - ANSWER Efferent arteriole constriction.
A patient with diabetes insipidus has experienced damage to the hypothalamus and
will produce large quantities of dilute urine due to: - ANSWER antidiuretic hormone
(ADH) hyposecretion.
The stomach is covered with this to increase the surface area? - ANSWER Rugae
What is B12 needed for - ANSWER RBC production
What are the 3 layers of the stomach - ANSWER oblique (inner most layer), circular
(middle), longitude outer most layer)
What are the 4 functions of the stomach - ANSWER mechanical breakdown,
storage of food, disruption of chemical bonds, and the production of intrinsic factor
What is found within the gastric glands - ANSWER parietal and chief cells
What do parietal cells secrete? - ANSWER HCL
What do proton pump inhibitors (PPI) do? - ANSWER stop oxygen from parietal
cells
What do chief cells make? - ANSWER pepsinogen
T/F are chief cells important for digestion? - ANSWER TRUE
What do G cells release? - ANSWER Gastrin.
Where are D cells located? - ANSWER in pyloric glands
, What do D cells secrete? - ANSWER somatostatin
What are the 3 phases of gastric secretion? - ANSWER cephalic phase, gastric
phase, and intestinal phase
T/F are nutrients secreted in the stomach? - ANSWER FALSE
What are finger like structures in the mucosa membrane known as? - ANSWER Villi
What is located on the Villi? - ANSWER Microvilli
What will bicarbonate be used for? - ANSWER it will be used to bring PH up from a
2-4 to a 7
What does enteropeptidase do? - ANSWER it activates pancreatic proenzyme
trysinogen
What does enteroendocrine produce? - ANSWER gastrin, cholecystokinin and
secretin
What is hydrolysis? - ANSWER it splits large insoluble molecules into smaller
pieces
What is amylase? - ANSWER breaks down carbohydrates
What is nucleases? - ANSWER breaks down nucleic acids
What does the gall bladder release? - ANSWER bile
Where is bile made? - ANSWER liver
What does emulsification do? - ANSWER breaks fats apart
What are gallstones? - ANSWER accumulation of harden cholesterol
What is pancreatitis, and what will it change? - ANSWER it is inflammation of the
pancreas and it will change the release of amylase
When secretin released? - ANSWER when chime arrives
When will CCK (cholecystokinin) be released? - ANSWER when is senses lipids
and proteins
When will GIP (gastric inhibitory peptide) be secreted? - ANSWER when
carbohydrates and fats enter the small intestine
When are G cells released? - ANSWER = when incompletely digested proteins are
exposed
What does the liver do? - ANSWER synthesizes and secretes bile
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